Icelandair´s programme offers free stop-over in Iceland (up to 177 hours) when travelling to destinations in North America. This time you may take this advantage to book very cheap multi-city flights from UK to Iceland & Toronto £270! Look for flights departing from London, Manchester, Birmingham or Glasgow. All charges and fees as well as 2x23kgs checked luggages are included in base fare. 
Icelandair promotion is valid for flights booked in travel period from 27th of October 2016 till 31st of March 2017. (Blackout period 16.12. - 9.1.). Max stay 1 month. Please refer to below booking sample from each of the origin cities if interested in this solution..
Booking samples
You may check your connection possibilities via Skyscanner tool. To book some affordable accommodation in Canada or Iceland you may use Booking.com or consider following promo codes offered by Amoma, Hotels.com, Ebookers, Hotelopia or Venere.
Booking sample of cheap multi-city flights from UK to Iceland & Toronto £270 here. In this case you would depart from Manchester to Reykjavik on 31st of October. You would move from Iceland to Canada on 4th of November. Finally you would return from North America back to the UK on 19th of November 2016.
